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    <h1><span class="icon terraformer">terraformer</span></h1>
    <h2>A thing that does stuff to your data so you can map gooder.</h2>
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      <a href="/getting-started/" class="button button-light">Getting Started</a>
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  <h2>Terraformer Core</h2>
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    <a href="/core/" class="button button-light">Documentation</a>
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<blockquote>
<p>Tools and objects for working with and transforming GeoJSON.</p>
</blockquote>

<p>The core Terraformer library provides a series of <code>Terraformer.Primitives</code> which wrap GeoJSON objects for additional functionality and a series of <code>Terraformer.Tools</code> for manipulating and performing calculations on coordinates.</p>

<p>You can also use the core library to see if an object contains or intersects another object, convert an object to a different spatial reference, or transform an object&rsquo;s coordinates.</p>

<p>The core library is also used in most other components of Terraformer for performing basic tasks and calculations.</p>

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  <h2>GeoStore</h2>
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<blockquote>
<p>A lightweight API that allows you to store, index and query geographic data.</p>
</blockquote>

<p>GeoStore is a lightweight API that allows you to store, index and query geographic data with a variety of indexes and persistence methods. Each GeoStore consists of&hellip;</p>

<ol>
<li><p>A <em>spatial index</em> which is responsible for indexing and optimizing the geographic data in the store.</p></li>
<li><p>A <em>data store</em> which is responsible for persisting data, either holding it in memory or persisting it to a backend database.</p></li>
<li><p>Any number of <em>secondary indexes</em> which index properties associated with your geographic data.</p></li>
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<p>Allows you to convert between <a href="/core/#terraformerprimitive">Terraformer Primitives</a> or <a href="http://geojson.org/geojson-spec.html">GeoJSON</a> and the <a href="http://resources.arcgis.com/en/help/arcgis-rest-api/#/Geometry_Objects/02r3000000n1000000/">ArcGIS Geometry Objects</a>.</p>
<pre class="highlight javascript"><code><span class="c1">// parse ArcGIS JSON, convert it to a Terraformer.Primitive</span>
<span class="kd">var</span> <span class="nx">primitive</span> <span class="o">=</span> <span class="nx">Terraformer</span><span class="p">.</span><span class="nx">ArcGIS</span><span class="p">.</span><span class="nx">parse</span><span class="p">({</span>
  <span class="na">x</span><span class="p">:</span><span class="s2">"-122.6764"</span><span class="p">,</span>
  <span class="na">y</span><span class="p">:</span><span class="s2">"45.5165"</span><span class="p">,</span>
  <span class="na">spatialReference</span><span class="p">:</span> <span class="p">{</span>
    <span class="na">wkid</span><span class="p">:</span> <span class="mi">4326</span>
  <span class="p">}</span>
<span class="p">});</span>

<span class="c1">// take a Terraformer.Primitive or GeoJSON and convert it to ArcGIS JSON</span>
<span class="kd">var</span> <span class="nx">point</span> <span class="o">=</span> <span class="nx">Terraformer</span><span class="p">.</span><span class="nx">ArcGIS</span><span class="p">.</span><span class="nx">convert</span><span class="p">({</span>
  <span class="s2">"type"</span><span class="p">:</span> <span class="s2">"Point"</span><span class="p">,</span>
  <span class="s2">"coordinates"</span><span class="p">:</span> <span class="p">[</span><span class="mf">45.5165</span><span class="p">,</span> <span class="o">-</span><span class="mf">122.6764</span><span class="p">]</span>
<span class="p">});</span>
</code></pre>

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  <img src="assets/images/terraformer-wktparser-b18bc9d9.png" alt="terraformer WKT Parser">
  <h2>Well Known Text Parser</h2>
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    <a href="/wkt-parser/" class="button button-light">Documentation</a>
    <a href="/install/#wkt-parser" class="button button-light">Get WKT Parser</a>
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<p><a href="http://en.wikipedia.org/wiki/Well-known_text">Well Known Text</a> is a format used by databases like PostGIS. With Terraformer&rsquo;s WKT parser you can convert between this format and GeoJSON.</p>
<pre class="highlight javascript"><code><span class="c1">// parse a WKT file, convert it into a primitive</span>
<span class="kd">var</span> <span class="nx">primitive</span> <span class="o">=</span> <span class="nx">Terraformer</span><span class="p">.</span><span class="nx">WKT</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="s1">'LINESTRING (30 10, 10 30, 40 40)'</span><span class="p">);</span>

<span class="c1">// take a primitive and convert it into a WKT representation</span>
<span class="kd">var</span> <span class="nx">polygon</span> <span class="o">=</span> <span class="nx">Terraformer</span><span class="p">.</span><span class="nx">WKT</span><span class="p">.</span><span class="nx">convert</span><span class="p">({</span>
  <span class="s2">"type"</span><span class="p">:</span> <span class="s2">"Polygon"</span><span class="p">,</span>
  <span class="s2">"coordinates"</span><span class="p">:</span> <span class="p">[</span>
    <span class="p">[</span> <span class="p">[</span><span class="mf">100.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">],</span> <span class="p">[</span><span class="mf">101.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">],</span> <span class="p">[</span><span class="mf">101.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">]</span> <span class="p">],</span>
    <span class="p">[</span> <span class="p">[</span><span class="mf">100.2</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.8</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.8</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.2</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">],</span> <span class="p">[</span><span class="mf">100.2</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">]</span> <span class="p">]</span>
  <span class="p">]</span>
<span class="p">});</span>
</code></pre>

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